Ready for a heating system that delivers better efficiency, performance, and reliability? A system boiler is a powerful and reliable option for homes that require stored hot water and consistent heating performance.
At HBE Heating, we install high quality Worcester Bosch system boilers, helping homeowners across North Essex & Suffolk enjoy efficient heating and strong hot water performance throughout the home.
A system boiler powers your central heating while working alongside a hot water cylinder, allowing hot water to be stored and supplied to multiple taps and showers at the same time. Unlike combi boilers, system boilers are better suited to homes with higher hot water demand, as they can deliver consistent pressure across several outlets. If you have a larger household with more people, multiple bathrooms, or higher daily usage, a system boiler is well worth considering.
System boilers come in different fuel types depending on your property and location.
What is a gas system boiler? A gas system boiler runs on mains gas and works with a hot water cylinder to provide reliable heating and stored hot water throughout your home.
Why choose gas?
Best for homes connected to the gas grid.
What is an Oil system boiler? An oil system boiler uses heating oil stored in a tank and is ideal for off grid properties. It delivers strong heating output and works seamlessly with a hot water cylinder.
Why choose oil?
Best for rural homes across North Essex & Suffolk.
What is an LPG system boiler? An LPG system boiler uses liquefied petroleum gas stored on your property. It offers similar performance to gas system boilers, making it a great option for off grid homes. LPG is a cleaner burning fuel than oil, producing fewer carbon emissions and less soot. This makes LPG system boilers a more environmentally friendly option for homeowners looking to reduce their impact.
Why choose LPG?
Best for homes wanting gas style convenience without a mains connection.
System boilers are ideal for homes with higher hot water demand and multiple bathrooms.
Best suited for:
May not suit:
If you are unsure our experts will help you decide if a system boiler is the right choice. Or you can complete our boiler quote form and this will recommend a boiler based on your selections.
At HBE Heating, we install trusted Worcester Bosch system boilers, known for their efficiency, durability, and performance. System boilers are available in a range of models and kW outputs to suit different property sizes and heating demands.
Small homes:
Worcester Bosch Greenstar 4000 12kW System Boiler
Compact, efficient and ideal for smaller homes using a hot water cylinder.
Medium homes:
Worcester Bosch Greenstar 4000 18kW System Boiler
More powerful output for consistent heating and improved performance in medium sized homes.
Large homes:
Worcester Bosch Greenstar 4000 24kW System Boiler
Higher output for faster heat up times and larger radiator systems.
Premium option (medium to large homes):
Worcester Bosch Greenstar 8000 30kW System Boiler.
High performance system boiler offering superior efficiency, powerful output, quiet operation and a modern design.
Small to medium homes:
Worcester Bosch Greenstar Danesmoor 12/18 System Boiler
Compact, efficient and perfect for smaller rural homes needing consistent heating.
Medium to larger homes:
Worcester Bosch Greenstar Danesmoor 18/25 System Boiler
Improved output for stronger heating and better hot water recovery.
Large / extra-large homes:
Worcester Bosch Greenstar Danesmoor 25/32 System Boiler
High powered system boiler designed for large properties with high demand.
We install the same Worcester Bosch models as gas system boilers, adapted for LPG fuel supply.
kW (kilowatts) refers to the heating power of your boiler.
The higher the kW, the more heating and hot water your system can support.
Choosing the right size:
Choosing the correct size ensures efficiency, comfort, and lower running costs. If you are unsure what size you will require our experts heating engineers will be able to talk you through your options and recommend the best boiler for your home & needs. Alternatively you can fill out our boiler quote form and it will recommend a boiler after you have completed a few questions about your home.
The most common question we get asked is understandably “How much does a boiler cost” The cost of a new system boiler depends on several factors, including the boiler size and kW output required, the size of your home, the number of radiators, and the complexity of the installation.
At HBE Heating, our system boiler installations typically range from £2,759 to £4,949, depending on your setup. A straightforward replacement (swapping an existing system boiler in the same location) will usually fall at the lower end of the range. However, costs may increase if you are converting from a different boiler type, upgrading your system, or relocating the boiler, as this requires additional work. Typically if you need an oil boiler in a larger home this would be more expensive than a combi boiler installation in a small home. We also offer flexible boiler finance options, helping you spread the cost into manageable monthly payments.
System Boiler Price Example:
Semi-Detached, 1 Bedroom, 1 Bathroom, Water Cylinder.
Worcester Bosch Greenstar 4000 12kW = £2,759 or from £26.44 per month*
1. Complete our short form – Tell us about your home and heating needs.
2. Get an instant estimate – We’ll suggest a suitable boiler & provide an estimated cost.
3. Speak to an expert – We’ll contact you with tailored advice.
4. Book your installation – Choose a time & date that suits you.
5. Enjoy ongoing support – We offer annual boiler servicing to keep your boiler in top condition and maintain your warranty.
Your Local Gas Safe Boiler Experts Across North Essex & Suffolk
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Keep your boiler running efficiently
Regular servicing keeps your system safe and performing at its best.
A system boiler will typically last around 10 to 15 years, but its lifespan largely depends on how well it is maintained and looked after over time. Regular boiler servicing plays a key role in keeping the boiler running efficiently, safely, and reliably, helping to prevent wear and tear from turning into more serious issues. Boilers that are serviced annually and properly maintained often last longer and perform better, while those that are neglected may experience reduced efficiency, more frequent breakdowns, and a shorter lifespan. At HBE Heating, we always recommend yearly servicing to help maximise the life of your system boiler and ensure it continues to heat your home safely and efficiently. Visit our boiler service page for more info.
A system boiler can comfortably run multiple bathrooms at the same time, as it works alongside a hot water cylinder that stores heated water ready for use. This means you can run two or more showers or taps simultaneously without experiencing a drop in pressure or temperature, which is a common limitation with smaller combi boilers. However, performance still depends on choosing the correct cylinder size and boiler output, which is why at HBE Heating, we ensure your system is properly matched to your home for consistent, reliable hot water across every outlet. We can advise the best option for your home and budget.
A system boiler installation typically takes between 1 and 3 days, depending on the type and how complicated the installation is. A straightforward replacement, where an existing system boiler is swapped for a new one in the same location, is usually completed within 1 day. However, if you are converting from a different type of boiler, such as a combi or regular system, or making changes to your heating setup, including installing or upgrading a hot water cylinder, the process can take 2 to 3 days or slightly longer. Factors such as the size of your property, the number of radiators, and whether the boiler is being relocated can also affect installation time. At HBE Heating, our experienced engineers work efficiently to minimise disruption and will always provide a clear timescale before starting the installation. If you are unsure we can advise before you book how long it will take our heating engineer to install your boiler.
Yes, we offer flexible pay monthly boiler options plans. We understand that paying in full for a boiler is a high value purchase. It makes it a lot more affordable to offer customers the option to pay for their new boiler monthly. Boiler finance is subject to status and affordability. Visit our boiler finance page for more info.
There isn’t a one size fits all answer, the best option depends on your home, heating demand, and fuel access. However, for most homeowners, the choice comes down to this:
Get a fast, fixed price quote from your trusted local boiler experts today.
HBE Heating is a trading style of Koziwarm Plumbing & Heating Ltd, Company Number 10452559. Registered Address: 5e Morse Lane, Brightlingsea, Colchester, Essex, CO7 0SF.
Koziwarm Plumbing & Heating Ltd is an Appointed Representative of Shermin Finance Limited, who are authorised and regulated by the Financial Conduct Authority FRN 727594, company number 1276121. Registered Office: HomeServe, Cable Drive, Walsall, WS2 7BN. Shermin Finance Limited acts as a credit broker, not a lender. Credit is subject to status and affordability checks. Finance is provided by Zopa Bank Limited.
